Window air conditioner



FIG. 1 is a top perspective view of a window air conditioner showing my new design;

FIG. 2 is a front view thereof,

FIG. 3 is a rear view thereof;

FIG. 4 is a left view thereof;

FIG. 5 is a right view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 is a bottom perspective view thereof. 

The ornamental design for a window air conditioner, as shown and described. 